Tujuan dari penelitian ini adalah untuk mempelajari stabilitas warna hasil ekstraksi kulit kayu secang (Caesalpinia sappan L.) akibat perlakuan suhu dan pH. Penelitian ini telah dilaksanakan di Laboratorium Kimia Hasil Pertanian Jurusan Teknologi Pertanian Fakultas Pertanian Universitas Sriwijaya pada bulan November 2004 sampai Mei 2005. Rancangan percobaan yang digunakan dalam penelitian ini a…
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Tin is one of the abundant resources in Indonesia, where its distribution along streams and plains depends on the characteristics of the soil layer, such as in the Belitung, Bangka, Kundur, Sumatra islands and on the island of Kalimantan the distribution indicates the distribution of alluvial sediments. One of the uses of tin in order to increase added value is as a manufacture of tin chemical …
The widespread mafic-ultramafic complexes in the Earth are well-known as their hosting Ni-Cu-PGE ore deposits, and their petrogenesis and mineralization have become hot issues in the geological studies. This thesis comprehensively investigated the petrology, mineralogy, geochemistry and geochronology of several mafic-ultramafic complexes in the Beishan Terrane, southern Central Asian Orogenic B…